Depression is a serious medical illness; it’s not something that you make up in your head. More than a feeling of being “down in the dumps” or “blue” for a few days, the symptoms of Depression are severe and debilitating. Depression is characterized by feeling “down,” “low” and “hopeless” for weeks at a time. Factors that can contribute to the onset of Depression include stress, poor nutrition, physical illness, personal loss, relationship difficulties and the presence of other physical disorders. Depression isn’t always easy to detect, and people with depressive conditions can experience different symptoms. It may be expressed through lack of appetite or overeating; insomnia or an unnatural desire to sleep; the abuse of drugs and alcohol; sexual promiscuity; or hostile, aggressive, or risk-taking behavior.